Display screen or portion thereof with a transitional graphical user interface



The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a first front view of a first image in a sequence of the display screen or portion thereof with a transitional graphical user interface (GUI), showing the new design in color;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a third image thereof;

FIG. 4 is a front view of a fourth image thereof;

FIG. 5 is a front view of a fifth image thereof;

FIG. 6 is a front view of a sixth image thereof;

FIG. 7 is a front view of a seventh image thereof;

FIG. 8 is a front view of an eight image thereof;

FIG. 9 is a front view of a ninth image thereof;

FIG. 10 is a front view of a tenth image thereof;

FIG. 11 is a front view of an eleventh image thereof;

FIG. 12 is a front view of a twelfth image thereof; and,

FIG. 13 is a front view of a thirteenth image thereof.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-13. The process and period in which one image transitions to another image forms no part of the claimed design.

The broken lines illustrate the display screen or portion thereof and form no part of the claimed design. The broken lines illustrate portions of the graphical user interface and form no part of the claimed design. 

CLAIM A ornamental design for a display screen or portion thereof with a transitional graphical user interface, as shown and described. 